Why Do Tribal Africans in Middle Adulthood Show Less Decline

question 91

Multiple Choice

Why do tribal Africans in middle adulthood show less decline in hearing than people in developed countries do?

• A)They are exposed to less noise in their daily lives.
• B)They must make loud noises to keep away predators, so they are used to loud noise.
• C)They are genetically better at hearing.
• D)Their diets have been shown to support hearing.

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